The Cisco High-Density Packet Voice/Fax DSP Module (AS54-PVDM2-64) helps the Cisco AS5400XM and AS5350XM Voice Gateways provide high-density voice connectivity to Cisco Voice Infrastructure and Applications (VIA) solutions. Cisco AS5000XM Series Voice Gateways offer service providers and large enterprises intelligent, high-capacity voice gateways that can be used for several solutions, including voice services over broadband, wholesale voice transport, unified communications, call-center services, IP-enabled interactive voice response (IVR), toll bypass, hosted IP telephony, and prepaid calling card services. The high-density packet voice/fax digital-signal-processor (DSP) module is available and supported in a single version (part number AS5X-PVDM2-64.